UMC Reports Sales for October 2012

                      UMC Reports Sales for October 2012

PR Newswire

TAIPEI, Taiwan, Nov. 8, 2012

TAIPEI, Taiwan, Nov. 8, 2012 /PRNewswire/ -- United Microelectronics
Corporation (NYSE: UMC; TWSE: 2303) ("UMC") today reported unaudited net sales
for the month of October 2012.

Revenues for October 2012

Period        2012           2011           Y/Y Change    Y/Y (%)    M/M (%)
October       9,280,926      8,255,460      +1,025,466    +12.42%    +1.84%
Jan.-Oct.     89,191,274     89,709,745     -518,471      -0.58%     N/A
(*) All figures in thousands of New Taiwan Dollars (NT$), except for
percentages.

Additional information about UMC is available on the web at
http://www.umc.com.

Contacts:

Bowen Huang / Peter Lu
UMC, Investor Relations
Tel:        +886-2-2658-9168, ext. 16944 / 16904
Email:      bowen_huang@umc.com
            peter_lu@umc.com

SOURCE United Microelectronics Corporation

Website: http://www.umc.com